Declare coefficient values when using Regression

[ashkoler]

When doing regression, the regression equation is nice but I would also like to have a declared coefficient listed underneath just like the r and r^2 values are. Occasionally there are issues with decimal accuracy (the equation below gives two decimal accuracy for 'a' but the question I am answering requires 3 decimals). I understand abbreviating for space within the equation but a declared 'a' value below offers room for more accuracy when needed.

[adri1numworks]

For the significant figures: for now, we force 7 SF at maximum. We have an issue opened internally to change this behavior, I linked your request to it.
Concerning the declared coefficient, do you want to input your own model? Not sure I understood your use case here